Process of extracting oil.



P. B. ANDERSON.

PROCESS OF EXTRACTING'OIL.

APPLICATION FILED OCT. 21, 1907.

960,143. Patented May 31, 1910.

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.P. B. ANDERSON PBOGESS'OF EXTRAGTING OIL. APPLICATION FILED OUT. 21, 1907. 969 1413 Patented May 31, 1910.

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F. B. ANDERSON.

PROGESS 0P EXTRAGTING OIL.

APPLIGATIOII FILED 00121, 1907.

- Patented May 31, 1910.

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5mm CHI] I "UNITED smite ATENT ricn- :ERANK B. ANDERSON, OF CLEVELAND, OHIO, ASSIGNOB TO THE V. D. ANDERSON COM- PANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

PROCESS OF EXTRACTING OIL.

To all whom it may concern:

Be it known that I, FRANK B. ANDERSON, a citizen of the United States, residing at Cleveland, in the county of Ouyahoga and State of Ohio, have invented certain new and useful Improvements in Processes of Extracting Oil, of which the following is a specification.

My present invention pertains to an improved process of extracting oil, which is set forth in detail in the following description, reference being had to the annexed drawings, wherein:

Figure 1 is a side elevation ofa plant for carrying out said process; Fig. 2 a top plan view of a portion thereof; Fig. 3 a longitudinal vertical sectional view of the footsdistributer; Fig. i a detail sectional elevation of a portion of the distributer; and Fig. 5 a detail perspective view of the comb or disintegrator employed to break up the compressed foots.

The apparatus shown has been found to work advantageously, but it is to be understood that the process may be carried out with other forms and arrangements of parts without departing from the spirit of the invention.

The main object of the process is to procure cold, or practically cold, pressed oil, to separate the foots therefrom and intermingle such foots with the stock which is being fed to the expellers, so that the foots will be re-pressed and all the oil extracted. In the apparatus herein set forth the foots which are taken from the filter press and those that are gathered at the expellers or initial presses are returned continuously to the expellers.

In the socalled expeller process of extraction, the oil-seed or oil-seed meal which is passed to the expeller is not heated sufiiciently to harden the albumen therein, and this albumen, therefore, remains in the cake. This condition makes it possible to pump the oil coming from the expeller directly through the filter press, so that at the end of the days run the output of the plant is weighed up in filtered oil.

With the hydraulic or old process, the meal requires cooking to such an extent that the resultant oil, containing more or less albuminous matter in suspension, requires settling before it can be pumped through the Specification of Letters Patent.

Application filed October 21, 1907.

Patented May 31, 1910.

Serial No. 398,426.

filter press without stopping up the filter cloths. By the old process there was no practical way of working back the filter-- press foots, and in the majority of cases such foots were sold for soapstock. The filterpress foots obtained from the expeller oil contain less albuminous matter and are consequently more granular and easily fed back with the fresh material to the expellers and thus turned into oil and cake. By the present process no soap-stock or waste byproduct is accumulated.

In the annexed drawings I have illustrated a plant capable of carrying out the process above outlined. The seed passes from a hopper A into a crushing mill B, from which it is taken by an elevator O and discharged through a spout D into a conveying and distributing trough E. The material is discharged from said trough through spouts F and G, Fig. 1, the meal or disrupted seed passing from the spouts into tempering troughs H, said troughs being by preference constructed similar to that shown in the patent granted to V. D. Anderson under date of November 21, 1905, No. 805,112.

An expeller I is located beneath each of the tempering troughs and the material is discharged from said troughs through spouts J into the feed end of the expellers, which may be of the type shown in Letters Patent No. 801,70t, granted to V. D. Anderson under date of October 10, 1905. Each tempering trough contains an agitator K, which also serves to advance the material from the feed end of the trough to the discharge spout J. Any excess of material which may be fed into the tempering troughs will pass out by spouts L into screw conveyers L which in turn discharge into an overflow return conveyer M, which extends beneath both tempering troughs and above the expellers. Said return overflow conveyer discharges through a spout N at a point adjacent to the elevator C, so that the excess material is again carried up by the elevator and fed back to the expellers.

The oil which passes from each expeller or press is discharged into a strainer O, similar to that shown in Letters Patent No. 801,704, aforesaid, and from the strainer passes into a pan or receptacle P. Such foots as are caught by the strainer are fed out therefrom by a worm Q to a conveyer R which elevates and discharges the same into the tempering trough.

The oil from the pan P fiows through a pipe S, connected to the pan of each expeller, the pipe (see Fig. 2) passing to a pump T which serves to withdraw the oil from the pans and cause the same to enter a tank U. From the tank the oil is forced by a pump V into a filter-press WV, the latter being indicated in outline only in Fig. 2. Such filter-press may be of any approved type now upon the market, of which there are many.

At the end of one or two days run the filter-press becomes full of accumulated semi-hard cake, termed in the trade filterpress foots. When this condition obtains, the filter-press foots are removed and placed in the hopper A of a foots-distributer B located at a point adjacent to spout D, so that the foots may be discharged gradually into the conveyer trough E and be intermingled with the fresh material which is being passed into the trough. It is necessary to a complete and perfect operation that the foots be fed in in small quantities, as otherwise they would pass freely through the expellers without being deprived of the contained oil. In Figs. 3 to 5 inclusive a distributer which will accomplish this result is shown in detail. Located beneath the hopper A is a body portion C, preferably cylindrical in cross-section and having mounted therein a shaft D which carries a feed screw E and a series of feed and compressing screws F, the flights upon the latter screws being separated or broken away, similar to the arrangement shown in Letters Patent to V. D. Anderson No. ($417,354, dated April 10, 1900.

At the outer or discharge end of the body portion is provided a collar or mouth-piece G, the inner face of which is inclined so as to form a contracted passage to further condense and compact the material which is forced outwardly through the mouth-piece by the action of the screws.

A sleeve H is mounted upon the shaft D (see Fig. 4c) and a sprocket-wheel I is secured to said sleeve. The inner end of the sleeve is reduced, and mounted thereon is a frame having two arms J, each arm being provided with a series of outwardly-extending fingers or teeth K, the ends of the teeth standing adjacent to the outer face of the mouth-piece and serving, as the sleeve and arms are rotated, to disintegrate the material which is forced through the mouthpiece. Rapid motion is imparted to the sleeve and disintegrating fingers by a sprocket-chain L which passes about the sprocket-wheel I and a larger sprocketwheel M secured upon a driving shaft N. A pinion 0, also mounted upon the shaft N, meshes with a gear P carried by and secured to a sleeve Q which latter is free to turn upon a shaft R, the shaft also supporting an arm S which at its outer end is provided with a sprocket-wheel T that serves as a tightener for the sprocket-chain L. A pinion U is secured to the sleeve Q, said pinion in turn meshing with a large gear V mounted upon the outer end of the shaft D. By means of this arrangement a rapid motion will be imparted to the comb or disintegrating fingers, while a relatively slow speed is given to the screws carried by the shaft D. Thus the hopper A may be filled with foots and no further attention need be paid thereto, as the material will be forced out of the distributer gradually and will be broken up into fine particles by the comb, which rotates rapidly at the discharge end thereof. The foots in this condition pass through an opening V into the distributing trough E, where they are slowly intermingled with the new material which is passing to the trough through the spout D.

While I have referred to the expellers shown in the Anderson patents, it is to be understood that so far as the generic invention is concerned any expeller may be employed. So, too, any form of foots-distributer that will gradually feed the foots to the new stock which is being passed to the expellers, may be used.

No claim is made herein to the apparatus, nor to any particular part thereof shown and described in the present case, as that forms the subject-matter of a separate application, Serial No. 398,427, filed October 21, 1907.

Having thus described my invention, what I claim is:

1. The process of extracting oil, which consists in expelling the oil from the seed or other material; filtering the oil; and gradually feeding the filter-press foots to the stock which is being passed to the expellers.

2. The process of extracting oil from seed and the like, which consists in passing the stock through an eXpeller eflecting an initial separation of the foots from the oil; passing the foots back to the expeller; returning the oil to a filter press; and gradually distributing the filter-press foots to the material which is being fed to the expeller.

3. The process of extracting oil from seed and the like, which consists in feeding the material to a continuously-operating expeller; separating the foots from the oil as the latter passes from the expeller; conveying the oil to a filter press; and finally gradually feeding the filter-press foots to the expeller.

4. The process of extracting oil from seed and the like, which consists in feeding the stock to a continuously-operating expeller; securing the initial separation of the foots from the oil as it passes from the expeller; returning the foots thus separated to the expeller; passing the oil so obtained to a filter press; and finally feeding the filter-press foots gradually back to the expeller.

5. The process of extracting oil from seed and the like, which consists in constantly feeding the stock to a continuously-acting expeller; securing an initial separation of the foots from the oil; returning the foots thus separated to the expeller; passing the oil to a filter press and permitting the foots to gradually accumulate therein; and finally withdrawing the foots when accumulated and gradually feeding the same in a disintegrated condition back to the expeller, along with the new stock or material to be treated.

6. The process of extracting oil from seed and the like, which consists in breaking or grinding the seed; passing the same to an expeller in a slightly warm condition; securing an initial separation of the foots from the oil; passing said foots back to the expeller; conveying the oil to a filter press; and finally gradually mixing the filter-press foots with the new stock which is being fed to the expeller.

'7. The process of extracting oil from seed and the like, which consists in expressing the oil-from the stock; forcing the oil thus obtained through a filter press; and finally mixing the filter-press foots with the new stock to be treated.

8. The process of extracting oil from seed and the like, which consists in expressing the oil from the stock; forcing the oil through a filter press; and finally compressing the filter-press foots and feeding the same, along with the stock, to the expressing press.

9. The process of extracting oil from seed and the like, which consists in expressing the oil from the stock; forcing the oil through a filter press; compressing the filter-press foots; and finally disintegrating the compressed foots and mixing the same in such condition with the stock passing to the expeller.

10. The process of extracting oil from seed and the like, which consists in securing an initial expression of the oil from the stock; separating the foots from the oil; and gradually commingling the separated foots with the fresh stock to be treated.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FRANK B. ANDERSON.

Witnesses:

CHARLES W. TOLAND, RALPH BLUE. 

